Make WindowContainer surfaces container layers by default.

This reverts commit f6ef18334b4b90f025fa0ece969c2ce2f92221b1.

Reason for revert: ag/6227549 fixes underlying issue

Change-Id: Id1456529ef0009f8e28575ef591d9559c43db4a5
Fixes: 122561221
Test: go/wm-smoke
diff --git a/services/core/java/com/android/server/wm/BlackFrame.java b/services/core/java/com/android/server/wm/BlackFrame.java
index 497e412..84ba5ca9 100644
--- a/services/core/java/com/android/server/wm/BlackFrame.java
+++ b/services/core/java/com/android/server/wm/BlackFrame.java
@@ -48,7 +48,7 @@
 
             surface = dc.makeOverlay()
                     .setName("BlackSurface")
-                    .setColorLayer(true)
+                    .setColorLayer()
                     .setParent(null) // TODO: Work-around for b/69259549
                     .build();
             transaction.setWindowCrop(surface, w, h);